Forecast volumes and costs
On this page you can see a historic data related to the operating margin (OPMR).
New forecast volume of reserve, forecast volume of frequency response required, annual weighting factors for STOR contracts, and forecasts of BSUoS charges will be published on the Data Portal on a regularly basis.
Frequency response requirement documents are now on the System balancing reports page.
You can find out more about the balancing services incentive scheme (BSIS) and balancing services use of system (BSUoS) on their respective pages.
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Frequency Response data
See historic documents related to the outturn for energy services we have used.
BSUoS forecast data
See historic daily BSUoS Forecast data.
From 1st March 2020, Daily BSUoS Forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/balancing/balancing-services-use-of-system-bsuos-daily-forecast
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-10-07 | 7 Oct 2018 |
| BSUoS Forecast 2018-10-05 | 5 Oct 2018 |
| BSUoS Forecast 2018-10-04 | 4 Oct 2018 |
| BSUoS Forecast 2018-10-01 | 1 Oct 2018 |
| BSUoS Forecast 2018-09-30 | 30 Sep 2018 |
| BSUoS Forecast 2018-09-29 | 29 Sep 2018 |
| BSUoS Forecast 2018-09-28 | 28 Sep 2018 |
| BSUoS Forecast 2018-09-27 | 27 Sep 2018 |
| BSUoS Forecast 2018-08-26 | 26 Sep 2018 |
| BSUoS Forecast 2018-09-25 | 25 Sep 2018 |
Daily BSUoS Forecast 2017-18
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast 2018-01-30 | 30 Jan 2018 |
| BSUoS Forecast 2018-01-29 | 29 Jan 2018 |
| BSUoS Forecast 2018-01-26 | 26 Jan 2018 |
| BSUoS Forecast 2018-01-25 | 25 Jan 2018 |
| BSUoS Forecast 2018-01-23 | 23 Jan 2018 |
| BSUoS Forecast 2018-01-22 | 22 Jan 2018 |
| BSUoS Forecast 2018-01-21 | 21 Jan 2018 |
| BSUoS Forecast 2018-01-20 | 20 Jan 2018 |
| BSUoS Forecast 2018-01-19 | 19 Jan 2018 |
| BSUoS Forecast 2018-01-18 | 18 Jan 2018 |
Monthly BSUoS Forecast
From 1st March 2020, Monthly BSUoS Forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/balancing/bsuos-monthly-forecast
| Name | Published Sort ascending |
|---|---|
| BSUoS Forecast May 2023 | 1 Apr 2023 |
| BSUos Outturn Chart and Commentary February 2023 | 1 Mar 2023 |
| BSUos forecast April 2023 | 1 Mar 2023 |
| BSUos forecast March 2023 | 1 Feb 2023 |
| BSUos Outturn Chart and Commentary January 2023 | 1 Feb 2023 |
| BSUos forecast February 2023 | 1 Jan 2023 |
| BSUos Outturn Chart and Commentary December 2022 | 1 Jan 2023 |
| BSUoS Forecast January 2023 | 1 Dec 2022 |
| BSUoS Outturn Chart and Commentary November 2022 | 1 Dec 2022 |
| BSUos Outturn Chart and Commentary October 2022 | 1 Nov 2022 |
From 1st March 2020, Operational Planning Margin Requirement (OPMR) and wind availability files will be published on our new National Grid ESO Data Portal. Please scroll down to OPMR and Wind availability files for daily or weekly.
Please see link below for the location:
| Name | Published Sort ascending |
|---|---|
| Daily OPMR for April 2018 | 30 Apr 2018 |
| Wind Availability | 19 Apr 2018 |
| Weekly OPMR 2018 Jan-Jun | 5 Apr 2018 |
| Weekly Wind Availability | 5 Apr 2018 |
| Daily OPMR for March 2018 | 29 Mar 2018 |
| Wind Availability | 23 Mar 2018 |
| Daily OPMR for February 2018 | 28 Feb 2018 |
| Wind Availability | 15 Feb 2018 |
| Daily OPMR for January 2018 | 31 Jan 2018 |
| Wind Availability | 23 Jan 2018 |
NRAPM forecast
The purpose of the Negative Reserve Active Power Margin (NRAPM) forecasting report is to indicate to the market a risk of NRAPM situation and therefore risk of Emergency Instructions.
From 1st March 2020, NRAPM (Negative Reserve Active Power Margin) forecast files will be published on our new National Grid ESO Data Portal.
Please see link below for the location:
https://data.nationalgrideso.com/generation/negative-reserve-active-power-margin-nrapm-forecast